I'm researching possible solutions for measuring the force exerted when running and jumping. The wearable application will be a type of insole and requires flexible sensors capable of reading up to (and likely beyond) 600N without permanently damaging the sensor. Flexible piezoresistive FSRs and capacitive sensors are perfect on form factor, but cannot get anywhere close to this force range from what I can tell. Even solutions currently on the market using these technologies are breaking quite easily out in the field. Is a flexible sensor, or even a smart material from which one could make a sensor, available for this range? Is it even possible?